Galleries in gravity dam
GALLERIES IN GRAVITY DAMS

Galleries in gravity dam

GALLERIES IN GRAVITY DAMS Galleries have to be left in the gravity dams during their construction. The size of the galleries depends upon the purpose, they have to perform. The galleries may be aligned both along the axis and across the axis of the dam. They are provided at all the levels of the dam. All the galleries are given some longitudinal slope and small channels along both the edges of the galleries are formed. Seeping water through the dam section is collected by the channels running along the galleries. Since channels have longitudinal slope, the collected water in channels keeps on flowing automatically and is collect at some central place from where it is discharged into the D/S side of the dam. Galleries are constructed to perform the following functions. 1. It may be cement concrete or masonary dam, some water definitely seeps through the joints and pores of…

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